A woman was killed and two children were seriously injured when their car went out of control on Hwy 271 in Pushmataha County Tuesday morning. The Oklahoma Highway Patrol says 29-year-old Lacy Stamps, of Clayton, lost control of the car and hit a tree, before overturning and landing on its roof. An eight-year-old boy and a 12-year-old girl were flown to Children’s Hospital in Oklahoma City.